XGY   Grimsby Mountain, ON
Weather Observed At   43-11  N    79-34  W
 
*** AURBO Watch In Effect ***
  2026-04-18 4:45am Max
Min
  Weather
----



  Temperature
4.8 °C
5.9 °C
 12:00am
4.8 °C
  4:44am
  Relative Humidity
94 %
95 %
  4:38am
93 %
 12:00am
  Dew Point
3.9 °C
5.0 °C
 12:00am
3.9 °C
  3:37am
  Wind Velocity
355 ° at  1.2 G 1.7 kt
3.5 kt
  2:36am

  Pressure
    29.801 " 
29.915 "
 12:30am
29.800 "
  4:42am
  Rainfall Rate
0.0 mm/h 0.2 mm/h
  4:00am

  Snow On Ground 0 cm

  Brightness / Darkness   0 W/m² /  19.77 m/"² 0 W/m²
 ----m
  19.87 m/"²    3:35am
  Remarks
 
  RainfallToday
0.2 mm
Storm Total
0.0 mm
  SnowfallToday
0.0 cm
Storm Total
0.0 cm
  Evapotranspiration Today
-0.00 mm


  Lake Conditions
  Water Temperature  --- °C
  Waves  ---
ICE FREE

  Meteor Index
18   Showers
  Aurora Index / Solar
95   Minor Storm   + 4 nT   Solar Flux   107  sfu  /   S 0    G 1    R 0   /  MUF   22.7 MHz
  Sunrise 6:31am
  Sunset 8:05pm

  Moonrise N/A
  Moonset N/A
  Moon Phase New Moon

Grimsby Mountain Weather Maps
Local Regional Area Synoptic

     
updated H+09 and every 10m updated H+19 and H+49
updated H+19

Ontario 6-Hour Meteorological Summary
Canadian 6-Hour Meteorological Summaries

CLIMAT Data
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EOF